WhiteBoard Medicine - Emergency And Critical Care

Continuous Renal Replacement Therapy (CRRT) can feel confusing — especially when trying to differentiate between CVVH, CVVHD, and CVVHDF. In this episode, we provide a clear, side-by-side comparison of all three modalities so you can understand how each works, when they are used, and how solute and fluid removal differ.
We break down convection vs diffusion, replacement fluid vs dialysate, ultrafiltration control, clearance efficiency, effluent dosing, and practical ICU decision-making. By the end of this episode, you’ll have a structured framework to confidently explain the differences between CVVH, CVVHD, and CVVHDF at the bedside.
This is a high-yield overview designed for emergency physicians, intensivists, residents, nurses, respiratory therapists, and advanced practice clinicians who want CRRT to finally “click.”
🎥 Watch the full YouTube video here:👉https://www.youtube.com/watch?v=FaAlplfPgL0
📚 Download the PDF study guide for this video:👉 https://www.patreon.com/c/WhiteBoardMedicinePatreon members get access to mini-courses, study guides, practice questions, ad-free videos, and in-depth educational discussions designed for emergency and critical care clinicians.
Disclaimer: This podcast is for educational purposes only and is not medical advice. Clinical decisions should always be made based on individual patient circumstances, institutional protocols, and consultation with appropriate specialists.

Continuous Venovenous Hemodialysis (CVVHD) is a core modality of continuous renal replacement therapy (CRRT) — but many clinicians struggle to fully understand how diffusion-based clearance works in the ICU.
In this episode, we break down CVVHD step-by-step, including dialysate flow, solute diffusion, ultrafiltration control, effluent rates, clearance principles, and how CVVHD differs from CVVH and CVVHDF. We focus on practical bedside physiology so you can clearly understand how toxins are removed, how fluid balance is controlled, and how settings impact patient care.
This episode is designed for emergency physicians, intensivists, trainees, nurses, respiratory therapists, and advanced practice clinicians who want a structured, physiology-first framework for CRRT.
If CRRT has ever felt overwhelming, this deep dive will simplify CVVHD into clear, actionable concepts.
🎥 Watch the full YouTube video here:👉https://www.youtube.com/watch?v=ymfP1RxqOuw
📚 Download the PDF study guide for this video:👉 https://www.patreon.com/c/WhiteBoardMedicinePatreon members get access to mini-courses, study guides, practice questions, ad-free videos, and in-depth educational discussions designed for emergency and critical care clinicians.
Disclaimer: This podcast is for educational purposes only and is not medical advice. Clinical decisions should always be made based on individual patient circumstances, institutional protocols, and consultation with appropriate specialists.

Continuous Venovenous Hemodiafiltration (CVVHDF) is one of the most complex — and most misunderstood — modalities of continuous renal replacement therapy (CRRT). In this episode, we break down CVVHDF from the ground up, including diffusion vs convection, dialysate and replacement fluid, solute clearance, ultrafiltration control, and how this modality differs from CVVH and CVVHD.
We walk through ICU-relevant physiology, clinical decision-making, and practical bedside considerations to help emergency physicians, intensivists, residents, nurses, and advanced practice clinicians understand how CVVHDF actually works in critically ill patients.
If CRRT has ever felt confusing, this episode brings it together into one clear framework.
🎥 Watch the full YouTube video here:👉https://www.youtube.com/watch?v=WQ_BdSXdRuc
📚 Download the PDF study guide for this video:👉 https://www.patreon.com/c/WhiteBoardMedicinePatreon members get access to mini-courses, study guides, practice questions, ad-free videos, and in-depth educational discussions designed for emergency and critical care clinicians.
Disclaimer: This podcast is for educational purposes only and is not medical advice. Clinical decisions should always be made based on individual patient circumstances, institutional protocols, and consultation with appropriate specialists.

Continuous Venovenous Hemofiltration (CVVH) Explained | ICU CRRT Deep Dive
Continuous venovenous hemofiltration (CVVH) is a core modality of continuous renal replacement therapy (CRRT) used in critically ill ICU patients, particularly those with hemodynamic instability who cannot tolerate intermittent dialysis. In this episode, we take a deep dive into the physiology, mechanisms, and clinical applications of CVVH to help you build a clear, bedside understanding of how this therapy works.
We break down the foundational principles behind CVVH, including convection and solvent drag, ultrafiltration, transmembrane pressure, and solute clearance. We also review key CRRT terminology, replacement fluid strategies, and high-yield clinical concepts that explain why CVVH is commonly used in septic shock, cardiogenic shock, severe fluid overload, and life-threatening electrolyte abnormalities.
This episode is designed for medical students, residents, fellows, ICU nurses, respiratory therapists, emergency physicians, and critical care clinicians who want a strong physiology-based understanding of renal replacement therapy in the ICU.
Topics covered include:• What CVVH is and how it works• Convection vs diffusion in CRRT• Ultrafiltration and net fluid removal• Transmembrane pressure and sieving coefficient• Replacement fluid strategies• Basic CVVH prescription principles• Clinical indications and complications• High-yield ICU and bedside pearls
If you want to strengthen your understanding of emergency critical care physiology and ICU management, this episode provides a structured and practical approach to one of the most important therapies in modern critical care.
📚 Download the PDF study guide for this video:👉 https://www.patreon.com/c/WhiteBoardMedicine
Patreon members get access to mini-courses, study guides, practice questions, ad-free videos, and in-depth educational discussions designed for emergency and critical care clinicians.
▶️ Watch the full video version here:https://www.youtube.com/watch?v=dKryfOQsf6U
⚠️ Podcast Disclaimer:This podcast is for educational purposes only and is intended for healthcare professionals and trainees. The content does not constitute medical advice, diagnosis, or treatment recommendations and should not replace clinical judgment, institutional protocols, or professional consultation. The views expressed are those of the presenters and do not represent any affiliated institutions or employers.

In this episode, we break down waveform interpretation in critical care, focusing on arterial line waveforms, end tidal capnography (ETCO₂) waveforms, and central venous pressure (CVP) waveforms used in ICU patient monitoring.
Learn how to interpret hemodynamic and respiratory monitoring waveforms, understand the physiology behind waveform components, and apply waveform analysis to mechanical ventilation and critical care management. This episode provides a practical guide to arterial line monitoring, capnography waveform phases, and central venous pressure waveform interpretation for respiratory therapists, ICU clinicians, nurses, and medical learners.
This episode is ideal for healthcare professionals learning hemodynamic monitoring, mechanical ventilation monitoring, respiratory therapy, and ICU patient monitoring.
🎥 Watch the full video here:👉 https://www.youtube.com/watch?v=buysdcesBgA
📚 Download the PDF study guide for this video:👉 https://www.patreon.com/c/WhiteBoardMedicine
Patreon members get access to mini-courses, study guides, practice questions, ad-free videos, and in-depth educational discussions designed for emergency and critical care clinicians.
Episode Timestamps
00:00 – 14:45 Arterial Line Waveform Interpretation14:46 – 24:42 End Tidal Capnography (ETCO₂) Waveform24:43 – 32:47 Central Venous Pressure (CVP) Waveform
Disclaimer
This content is provided for educational purposes only and is intended for healthcare professionals. It is not medical advice and should not be used as a substitute for clinical judgment, professional training, or institutional protocols. The information presented reflects general educational discussion and does not represent the official views, policies, or positions of any hospitals, healthcare organizations, or affiliated institutions. Clinical decisions should always be made in accordance with local guidelines, institutional policies, and appropriate supervision by qualified medical professionals.

In this episode, we break down spontaneous breathing trials (SBT) and extubation criteria used in the ICU to evaluate ventilator weaning and readiness for extubation. Learn how spontaneous breathing trials are performed, how to calculate and interpret the rapid shallow breathing index (RSBI), and how pressure support, CPAP, and T-piece trials compare in assessing patient breathing during mechanical ventilation.
We review clinical evidence, ventilator management strategies, and the physiologic principles behind each spontaneous breathing trial method. This episode also includes practice questions to reinforce key mechanical ventilation concepts for respiratory therapists, ICU clinicians, nurses, and medical learners.
This episode is ideal for healthcare professionals learning mechanical ventilation, respiratory therapy, ventilator weaning, and critical care medicine.
📚 Download the PDF study guide for this video: 👉 https://www.patreon.com/c/WhiteBoardMedicine Patreon members get access to mini-courses, study guides, practice questions, ad-free videos, and in-depth educational discussions designed for emergency and critical care clinicians.
Episode Timestamps
00:00 – 04:39 Introduction and what is a spontaneous breathing trial (SBT)04:40 – 12:24 When and how to perform a spontaneous breathing trial12:25 – 20:22 RSBI, passing SBT, evidence and guidelines20:23 – 22:57 Comparing pressure support, CPAP, and T-piece trials22:58 – 25:49 Practice questions (Part 1)25:50 – 36:35 Deep dive: Pressure support trial36:36 – 40:42 Deep dive: CPAP trial40:43 – 46:54 Deep dive: T-piece trial46:55 – 50:25 Practice questions (Part 2)
Link to YouTube video:https://www.youtube.com/watch?v=Fldrxt05Ks4 
Disclaimer
This content is provided for educational purposes only and is intended for healthcare professionals. It is not medical advice and should not be used as a substitute for clinical judgment, professional training, or institutional protocols. The information presented reflects general educational discussion and does not represent the official views, policies, or positions of any hospitals, healthcare organizations, or affiliated institutions. Clinical decisions should always be made in accordance with local guidelines, institutional policies, and appropriate supervision by qualified medical professionals.

In this episode, we take a deep dive into spontaneous breathing trial methods used in the ICU, focusing specifically on pressure support trials, CPAP trials, and T-piece trials. Learn how each approach works, how they differ physiologically, and how they are used to evaluate patient breathing during mechanical ventilation.
We break down the mechanics of each spontaneous breathing trial, including ventilator support levels, patient work of breathing, and the clinical considerations behind each method. This episode provides a clear comparison of pressure support vs CPAP vs T-piece to help you understand how these trials are applied in critical care and respiratory therapy practice.
In this episode, you’ll learn:
What pressure support trials are and how they work
CPAP trials and continuous positive airway pressure physiology
T-piece trials and unsupported breathing assessment
Key differences between pressure support, CPAP, and T-piece
How each spontaneous breathing trial affects patient work of breathing
Clinical considerations in ICU ventilator management
This episode is designed for respiratory therapists, ICU clinicians, medical students, and healthcare professionals learning mechanical ventilation and critical care respiratory management.
Follow the podcast for more deep dives into mechanical ventilation and respiratory therapy concepts.
 
📚 DOWNLOAD MINI COURSES, STUDY GUIDES, PRACTICE QUESTIONS, AD FREE VIDEOS, EDUCATIONAL DISCUSSIONS in our WBM Emergency Critical Care Patreon Community - Join Today!! https://www.patreon.com/c/WhiteBoardMedicine
Link to YouTube Video: https://www.youtube.com/watch?v=dLa5icg8H08
 
This content is provided for educational purposes only and is intended for healthcare professionals. It is not medical advice and should not be used as a substitute for clinical judgment, professional training, or institutional protocols. The information presented reflects general educational discussion and does not represent the official views, policies, or positions of any hospitals, healthcare organizations, or affiliated institutions. Clinical decisions should always be made in accordance with local guidelines, institutional policies, and appropriate supervision by qualified medical professionals.
Pressure support trial, CPAP trial, T-piece trial, spontaneous breathing trials, SBT ICU, mechanical ventilation, ventilator management, respiratory therapy, ICU ventilation, critical care ventilation
 

In this episode, we break down arterial line monitoring and arterial pressure waveform interpretation in a clear, step-by-step review designed for healthcare learners and critical care clinicians.
You’ll learn how arterial lines work, how pressure transducers detect blood pressure, and how to interpret arterial waveforms including the systolic upstroke, dicrotic notch, and mean arterial pressure. We also cover waveform changes related to contractility and systemic vascular resistance, as well as common monitoring issues like damping, square wave testing, and troubleshooting techniques.
This episode is ideal for nursing students, medical students, ICU nurses, anesthesia providers, and anyone learning invasive hemodynamic monitoring.
In this episode we discuss:
Arterial line placement, setup, and monitoring system components
Pressure transducers and how arterial blood pressure is measured
Arterial pressure waveform interpretation
Aortic valve opening and closing
Systolic and diastolic blood pressure on the waveform
Mean arterial pressure (MAP)
Waveform changes based on physiology
Normal vs underdamped vs overdamped waveforms
Square wave test and fast flush test
Causes of damping and troubleshooting
Practice labeling arterial waveforms
Whether you're preparing for clinical rotations, working in critical care, or reviewing hemodynamic monitoring concepts, this episode provides a complete guide to understanding arterial lines.
📚 Download the PDF study guide for this video: 👉 https://www.patreon.com/c/WhiteBoardMedicine Patreon members get access to mini-courses, study guides, practice questions, ad-free videos, and in-depth educational discussions designed for emergency and critical care clinicians.
Link to YouTube video: https://www.youtube.com/watch?v=j3ktvHAnRnI
Disclaimer: This content is for educational purposes only and is not intended to replace professional medical advice, diagnosis, or treatment. Always follow your institution’s protocols and consult qualified healthcare professionals for clinical decision-making.

In this episode, we explain calcium repletion during blood transfusion, focusing on citrate toxicity, dosing strategies, and practical clinical management. Designed for nursing students, ICU clinicians, and emergency and critical care professionals, this episode provides a clear, step-by-step guide to understanding how massive or rapid transfusion can affect calcium levels and why timely correction is critical for patient safety.
We review the pathophysiology of citrate toxicity, how it leads to hypocalcemia, and the clinical signs you need to recognize at the bedside. You’ll learn when to administer calcium, how to choose between calcium chloride and calcium gluconate, and how to dose and monitor repletion during transfusion. With real-world clinical insights and practical tips, this episode helps you confidently manage calcium balance in high-acuity situations.
Topics covered include:
• Overview of citrate toxicity during blood transfusion• How hypocalcemia develops and its clinical impact• Signs and symptoms of transfusion-related hypocalcemia• Indications for calcium repletion• Calcium chloride vs. calcium gluconate selection• Dosing strategies and monitoring considerations• Practical bedside management tips
Whether you’re preparing for exams, orienting to critical care, or strengthening your transfusion management skills, this episode delivers a clear and actionable guide to calcium repletion in acute care settings.
📚 Download the PDF study guide for this video:👉 https://www.patreon.com/c/WhiteBoardMedicinePatreon members get access to mini-courses, study guides, practice questions, ad-free videos, and in-depth educational discussions designed for emergency and critical care clinicians.
Critical Care Basics to Advanced Playlisthttps://youtube.com/playlist?list=PLf5bMa9_tvRjOMmnully6zFShzvh_ptiI&si=gwl_jVCzNxboxt6G
Disclaimer: This podcast is intended for educational and informational purposes only and does not constitute medical advice, diagnosis, or treatment. The content should not be used as a substitute for professional clinical judgment or consultation with a qualified healthcare provider. The creators and hosts assume no responsibility or liability for any actions taken based on the information presented in this episode.

In this episode, we deliver an ICU Sedation & Analgesia Masterclass, combining essential assessment tools and core medications used in mechanically ventilated patients. We cover the RASS (Richmond Agitation Sedation Scale), CPOT (Critical Care Pain Observation Tool), and CAM-ICU (Confusion Assessment Method for the ICU) alongside key ICU medications: propofol, dexmedetomidine (Precedex), fentanyl, and ketamine. This episode is designed for nursing students, ICU clinicians, and emergency and critical care professionals seeking a complete, practical framework for sedation and pain management.
We walk step by step through how to assess sedation, pain, and delirium, then connect those assessments to medication selection and titration. You’ll learn how to build a structured sedation strategy, optimize patient comfort, and improve safety in critically ill patients. With integrated clinical examples and bedside insights, this masterclass helps you confidently apply assessment tools and medications together in real-world ICU practice.
Topics covered include:
• Foundations of ICU sedation, analgesia, and delirium management• Step-by-step use of RASS, CPOT, and CAM-ICU• Mechanisms of action for propofol, Precedex, fentanyl, and ketamine• Medication selection and titration strategies• Monitoring priorities and safety considerations• Integrating assessment tools with sedation plans• Practical bedside tips for comprehensive ICU care
Whether you’re preparing for exams, orienting to critical care, or advancing your clinical expertise, this episode provides a clear and actionable master guide to ICU sedation and analgesia.
📚 Download the PDF study guide for this video:👉 https://www.patreon.com/c/WhiteBoardMedicinePatreon members get access to mini-courses, study guides, practice questions, ad-free videos, and in-depth educational discussions designed for emergency and critical care clinicians.
Sedation and Analgesia Playlist:https://youtube.com/playlist?list=PLf5bMa9_tvRjqnughk3N8k87skgCojPl3&si=_mF9Lugjlhe2eVyo
Disclaimer: This podcast is intended for educational and informational purposes only and does not constitute medical advice, diagnosis, or treatment. The content should not be used as a substitute for professional clinical judgment or consultation with a qualified healthcare provider. The creators and hosts assume no responsibility or liability for any actions taken based on the information presented in this episode.